A uniaxial compressive strength testing device for rock used in blasting test

Abstract

The utility model discloses a kind of uniaxial compressive strength testing devices of rock for blasting test, including bottom plate, the top of the bottom plate is fixed with top plate by support column, fixed with cylindrical seat on the bottom plate, the top of the cylindrical seat is slidably sleeved with bearing table, weighing sensor is installed between the cylindrical seat and bearing table, the outside of bearing table is slidably sleeved with acrylic transparent tube, lifting mechanism for driving acrylic transparent tube lifting is installed on the bottom plate, annular recovery box is slidably sleeved on acrylic transparent tube, the side of acrylic transparent tube is fixedly sleeved with second annular boss for supporting annular recovery box. The utility model is driven by lifting mechanism acrylic transparent tube to descend, then the residue on bearing table is swept to annular recovery box, to realize the quick processing of residue, finally remove annular recovery box and pour residue into specified recovery position.

Description

Technical Field

[0001] This utility model relates to the field of blasting test technology, and in particular to a uniaxial compressive strength testing device for rock used in blasting tests. Background Technology

[0002] The purpose of conducting uniaxial compression tests is to obtain the uniaxial compressive strength, elastic modulus, and Poisson's ratio of rocks. Therefore, during specimen preparation, axial and transverse resistance strain gauges need to be attached to the specimen. The axial and transverse strains of the rock during loading are recorded using a strain gauge, and the Poisson's ratio is calculated from this. Currently, during the testing process, the test sample often leaves debris scattered throughout the specimen during failure, making cleaning difficult and causing problems for the test. To better solve this problem, we propose a uniaxial compressive strength testing device for rocks used in blasting tests. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a uniaxial compressive strength testing device for rocks used in blasting tests.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A uniaxial compressive strength testing device for blasting tests of rock includes a base plate, a top plate fixed to the top of the base plate by a support column, a cylindrical seat fixed to the base plate, a bearing platform slidably sleeved on the top of the cylindrical seat, a weighing sensor installed between the cylindrical seat and the bearing platform, an acrylic transparent tube slidably sleeved on the outside of the bearing platform, a lifting mechanism for driving the acrylic transparent tube to rise and fall on the base plate, an annular recovery box slidably sleeved on the acrylic transparent tube, a second annular boss for supporting the annular recovery box fixedly sleeved on the side of the acrylic transparent tube, and a hydraulic cylinder installed on the top of the top plate, with a pressure block fixed to the piston rod of the hydraulic cylinder.

[0006] Preferably, the lifting mechanism includes a motor, a lead screw, and a nut block. The motor is mounted on the top of the base plate, and the output shaft of the motor is connected to the lead screw. The nut block is threaded onto the lead screw and fixed to the inner wall of the acrylic transparent tube.

[0007] Preferably, a first sliding rod is fixed to the top of the base plate, and a slider is slidably sleeved on the first sliding rod, the slider being fixed to the inner wall of the acrylic transparent tube.

[0008] Preferably, a first annular boss is fixedly sleeved on the cylindrical seat, the lead screw is rotatably sleeved inside the first annular boss, and the first slide rod is fixed on the first annular boss.

[0009] Preferably, several high-speed cameras are mounted on the side of the acrylic transparent tube.

[0010] Preferably, a sleeve is fixed to the bottom of the top plate, and a second sliding rod is slidably connected inside the sleeve, the second sliding rod being fixed to the pressure block.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, the acrylic transparent tube is raised by the lifting mechanism. The acrylic transparent tube can be used for protection during the test to prevent the generated debris from scattering everywhere. The hydraulic cylinder pushes the pressure block to move down. The pressure block continuously applies pressure to the rock sample used for the blasting test. The applied pressure can be detected by the weighing sensor. During the pressure application process, the high-speed camera captures the entire destruction process of the rock sample, which helps in subsequent analysis. The second slide rod slides in the sleeve to guide the movement of the pressure block, which can improve the stability of the movement of the pressure block.

[0013] 2. In this utility model, after the destructive test on the rock sample is completed, the acrylic transparent tube is lowered by the lifting mechanism, and then the residue on the support platform is swept into the annular recycling box, thereby realizing the rapid processing of the residue. Finally, the annular recycling box is removed and the residue is poured into the designated recycling location. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the uniaxial compressive strength testing device for rock used in blasting tests, as proposed in this utility model.

[0015] Figure 2 This is a cross-sectional view of an acrylic transparent tube for a uniaxial compressive strength testing device for blasting tests of rocks, as proposed in this utility model.

[0016] In the diagram: 1. Base plate, 2. Support column, 3. Top plate, 4. Cylindrical base, 5. Lifting mechanism, 51. Motor, 52. Lead screw, 53. Nut block, 54. First slide bar, 55. Slider, 6. Acrylic transparent tube, 7. Weighing sensor, 8. Bearing platform, 9. High-speed camera, 10. Circular recycling box, 11. Hydraulic cylinder, 12. Pressure block, 13. Sleeve, 14. Second slide bar, 15. Second annular boss, 16. First annular boss. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-2A uniaxial compressive strength testing device for rock used in blasting tests includes a base plate 1, a top plate 3 fixed to the top of the base plate 1 by a support column 2, a cylindrical seat 4 fixed on the base plate 1, a bearing platform 8 slidably sleeved on the top of the cylindrical seat 4, a weighing sensor 7 installed between the cylindrical seat 4 and the bearing platform 8, an acrylic transparent tube 6 slidably sleeved on the outside of the bearing platform 8, and a lifting mechanism 5 installed on the base plate 1 for raising and lowering the acrylic transparent tube 6. A rock sample for the blasting test is placed in the center of the bearing platform 8 (a strain sensor for detection is installed on the rock sample). The lifting mechanism 5 raises the acrylic transparent tube 6, which can be used for protection during the test to prevent debris from scattering. An annular recovery box 10 is slidably sleeved on the acrylic transparent tube 6, and a second annular boss 15 for supporting the annular recovery box 10 is fixedly sleeved on the side of the acrylic transparent tube 6. After the destructive test on the rock sample is completed, the lifting mechanism 5 raises the acrylic transparent tube 6. The acrylic transparent tube 6 descends, and then the residue on the support platform 8 is swept into the annular recycling box 10, thereby achieving rapid processing of the residue. Finally, the annular recycling box 10 is removed and the residue is poured into the designated recycling location. A hydraulic cylinder 11 is installed on the top of the top plate 3. The piston rod of the hydraulic cylinder 11 is fixed with a pressure block 12. The hydraulic cylinder 11 pushes the pressure block 12 down, and the pressure block 12 continuously applies pressure to the rock sample used for the blasting test. The applied pressure can be detected by the weighing sensor 7. Several high-speed cameras 9 are installed on the side of the acrylic transparent tube 6. During the pressure application process, the high-speed cameras 9 record the entire destruction process of the rock sample, which helps in subsequent analysis. A sleeve 13 is fixed at the bottom of the top plate 3. A second sliding rod 14 is slidably connected inside the sleeve 13. The second sliding rod 14 is fixed on the pressure block 12. By sliding the second sliding rod 14 inside the sleeve 13, the movement of the pressure block 12 is guided, which can improve the stability of the movement of the pressure block 12.

[0019] Reference Figure 2 The lifting mechanism 5 includes a motor 51, a lead screw 52, ​​and a nut block 53. The motor 51 is mounted on the top of the base plate 1. The output shaft of the motor 51 is connected to the lead screw 52. The nut block 53 is threaded onto the lead screw 52 and fixed to the inner wall of the acrylic transparent tube 6. A first slide rod 54 is fixed on the top of the base plate 1. A slider 55 is slidably sleeved on the first slide rod 54 and fixed to the inner wall of the acrylic transparent tube 6. A first annular boss 16 is fixedly sleeved on the cylindrical seat 4. The lead screw 52 is rotatably sleeved in the first annular boss 16, and the first slide rod 54 is fixed on the first annular boss 16. The motor 51 drives the lead screw 52 to rotate. The lead screw 52 can drive the nut block 53 to move through the threaded transmission between it and the nut block 53. The nut block 53 drives the acrylic transparent tube 6 to move synchronously. During the movement, the slider 55 slides on the first slide rod 54 to guide the movement, thereby improving the stability of the acrylic transparent tube 6.

[0020] Working principle: During use, the rock sample for the blasting test is placed in the center of the support platform 8 (a strain sensor for detection is installed on the rock sample). The lifting mechanism 5 drives the acrylic transparent tube 6 to rise. The acrylic transparent tube 6 can be used for protection during the test to prevent the generated debris from scattering everywhere. The hydraulic cylinder 11 pushes the pressure block 12 to move down. The pressure block 12 continuously applies pressure to the rock sample for the blasting test. The applied pressure can be detected by the weighing sensor 7. During the pressure application process, the high-speed camera 9 captures the entire destruction process of the rock sample, which helps in subsequent analysis. The second slide rod 14 slides in the sleeve 13 to guide the movement of the pressure block 12, which can improve the stability of the movement of the pressure block 12. After the destruction test of the rock sample is completed, the lifting mechanism 5 drives the acrylic transparent tube 6 to descend, and then the residue on the support platform 8 is swept into the annular recovery box 10, thereby realizing the rapid processing of the residue. Finally, the annular recovery box 10 is removed and the residue is poured into the designated recovery position.

[0021] The operating principle of the lifting mechanism 5 is as follows: the motor 51 drives the lead screw 52 to rotate, and the lead screw 52 can drive the nut block 53 to move through the thread transmission between the lead screw 52 and the nut block 53. The nut block 53 drives the acrylic transparent tube 6 to move synchronously. During the movement, the slider 55 slides on the first slide rod 54 to guide the movement, thereby improving the stability of the movement of the acrylic transparent tube 6.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A uniaxial compressive strength testing device for rock used in blasting tests, comprising a base plate (1), characterized in that, The top of the base plate (1) is fixed with a top plate (3) by a support column (2). A cylindrical seat (4) is fixed on the base plate (1). A bearing platform (8) is slidably sleeved on the top of the cylindrical seat (4). A weighing sensor (7) is installed between the cylindrical seat (4) and the bearing platform (8). An acrylic transparent tube (6) is slidably sleeved on the outside of the bearing platform (8). A lifting mechanism (5) for driving the acrylic transparent tube (6) to rise and fall is installed on the base plate (1). An annular recycling box (10) is slidably sleeved on the acrylic transparent tube (6). A second annular boss (15) for supporting the annular recycling box (10) is fixedly sleeved on the side of the acrylic transparent tube (6). A hydraulic cylinder (11) is installed on the top of the top plate (3). A pressure block (12) is fixed to the piston rod of the hydraulic cylinder (11).

2. The uniaxial compressive strength testing device for rock used in blasting tests according to claim 1, characterized in that, The lifting mechanism (5) includes a motor (51), a lead screw (52), and a nut block (53). The motor (51) is installed on the top of the base plate (1). The output shaft of the motor (51) is connected to the lead screw (52). The nut block (53) is threaded onto the lead screw (52). The nut block (53) is fixed on the inner wall of the acrylic transparent tube (6).

3. The uniaxial compressive strength testing device for rock used in blasting tests according to claim 2, characterized in that, The top of the base plate (1) is fixed with a first slide rod (54), and a slider (55) is slidably sleeved on the first slide rod (54). The slider (55) is fixed on the inner wall of the acrylic transparent tube (6).

4. The uniaxial compressive strength testing device for rock used in blasting tests according to claim 3, characterized in that, The cylindrical seat (4) is fixedly fitted with a first annular boss (16), the lead screw (52) is rotatably fitted inside the first annular boss (16), and the first slide rod (54) is fixed on the first annular boss (16).

5. The uniaxial compressive strength testing device for rock used in blasting tests according to claim 1, characterized in that, Several high-speed cameras (9) are mounted on the side of the acrylic transparent tube (6).

6. The uniaxial compressive strength testing device for rock used in blasting tests according to claim 1, characterized in that, The bottom of the top plate (3) is fixed with a sleeve (13), and a second slide rod (14) is slidably connected inside the sleeve (13). The second slide rod (14) is fixed on the pressure block (12).

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